Union Engineering A/S

12 patents currently held · Updated Nov 14, 2026

Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

Recorded under 2 name spellings.

Ending by 2030

Sep 2027

Next term end

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

20262027202820292030203120322033203420352036203720382039204020412042204320442045

Fee deadlines

Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.

1 fee due Dec 11, 2026
The maintenance fee for Method for the recovery of carbon dioxide from an absorbent with reduced supply of stripping steam (US 10,315,154) comes due Dec 11, 2026. Unpaid by Jun 11, 2027, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

1 term has ended since Aug 16, 2026

Patents held now

Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.

Patent	Title	Status	Expires	Confidence
US 8,475,566	Method for recovery of carbon dioxide from a gas In force Term ends Sep 2, 2027 · From the USPTO record	In force	Term ends Sep 2, 2027	From the USPTO record
US 8,529,854	Removal of carbon dioxide from a feed gas In force Term ends Apr 9, 2030 · From the USPTO record	In force	Term ends Apr 9, 2030	From the USPTO record
US 11,287,183	Method and plant for the purification of carbon dioxide using liquid carbon dioxide In force Term ends Jun 17, 2030 · From the USPTO record	In force	Term ends Jun 17, 2030	From the USPTO record
US 8,801,836	Method for recovery of carbon dioxide from a gas using a process gas heated reboiler for carbon dioxide removal in a stripper In force Term ends Jan 30, 2031 · From the USPTO record	In force	Term ends Jan 30, 2031	From the USPTO record
US 8,652,236	Method for recovery of high purity carbon dioxide In force Term ends Mar 8, 2031 · From the USPTO record	In force	Term ends Mar 8, 2031	From the USPTO record
US 9,851,143	High pressure recovery of carbon dioxide from a fermentation process In force Term ends Feb 21, 2032 · From the USPTO record	In force	Term ends Feb 21, 2032	From the USPTO record
US 9,545,595	Method for the removal of contaminants from a carbon dioxide feeding liquid stream In force Term ends Feb 15, 2033 · From the USPTO record	In force	Term ends Feb 15, 2033	From the USPTO record
US 11,397,049	High pressure recovery of carbon dioxide from a fermentation process In force Term ends Jul 18, 2034 · From the USPTO record	In force	Term ends Jul 18, 2034	From the USPTO record
US 10,730,007	Method for energy efficient recovery of carbon dioxide from an absorbent and a plant suitable for operating the method In force Term ends Feb 5, 2036 · From the USPTO record	In force	Term ends Feb 5, 2036	From the USPTO record
US 10,315,154	Method for the recovery of carbon dioxide from an absorbent with reduced supply of stripping steam In force Term ends May 13, 2036 · From the USPTO record	In force	Term ends May 13, 2036	From the USPTO record

10 of 12 patents shown.

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Pro members: see all 12 patents

Also on record, not counted in the 12: 1 ended at full term. List them

Sources and methods

Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand. How this record was built

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.

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Published applications

US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.

2 no status recorded

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